Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 65mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke65 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU
Delivering 245.3 N of push force at 0.5 MPa, the AirTAC MI25X65SU is a double-acting round-body mini cylinder built from a stainless-steel barrel and rod. This riveted construction shrugs off mild corrosion, giving it a real edge over painted alternatives in damp washdown environments. The Ø25 bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises.
A 65 mm stroke moves the Ø10 mm piston rod at 30-800 mm/s, while fixed TPU bumper pads absorb the end-of-stroke impact. Because this SKU includes the -S magnet, it supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. The U back cover provides a 90-degree port orientation for tight routing. For practical sizing, plan for roughly 147 N of real work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245.3 N push force to redirect heavy cartons onto secondary belts.
Vertical Parts Lift
Raises lightweight jigs or workpieces weighing up to 12.5 kg through the 65 mm stroke, relying on the U cover for compact 90-degree mounting.
Lab Sample Ejection
Ejects processed sample trays from a testing machine, where the stainless build resists chemical exposure and the -S magnet confirms ejection.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU the Right Cylinder?
When sizing this 25 mm bore, compare it against its neighbours: a 20 mm bore yields 157.0 N push at 0.5 MPa, while stepping up to a 32 mm bore provides 402.2 N. The MI25X65SU hits a solid middle ground for medium-force tasks. Air enters via a 1/8" port, and the male rod thread is M10x1.25. The U rear cover simplifies mounting in confined footprints, and the -S magnet enables drop-in sensor installation.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centred. The TPU bumpers only decelerate the stroke end; they cannot act as a brake. To suspend a load safely during an outage, fit an external rod lock or a pilot-operated check valve. Additionally, verify that your 65 mm stroke does not induce excessive side loading, which could bend the rod over time.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X65SU FAQ
The 25 mm bore generates 245.3 N push and 206.1 N pull at 0.5 MPa, or 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a 1/8" air port and a male M10x1.25 rod thread.
No, the piston will drift if air pressure is lost or the valve is centred. The fixed TPU bumper pads only decelerate the rod near the stroke end and do not function as a locking brake. You must add an external rod lock or pilot check valve to hold a suspended load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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